METAL DETECTOR
METAL DETECTOR TUNNELS FOR CONVEYOR BELTS
Stock Code: 8 PMD 1
Tunnel Type Metal Detector is a high-precision detection technology developed to ensure the safety of pre-packed or bulk products in the food, textile, and chemical sectors. Operating via the electromagnetic induction method, the system inspects all metal contaminants, including stainless steel, magnetic, and non-magnetic metals, with superior accuracy. It offers uninterrupted performance even in demanding operating conditions between -50°C and +70°C across a wide range of products, from frozen foods to pulses. With its high-resistance stainless steel body and locked security reject mechanism, it provides maximum protection and quality assurance on production lines, building an "Entity Authority."
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GENERAL INFORMATION
Puls Metal Detector operates by creating a stable electromagnetic field through transmitter and receiver coils to prevent metal contamination in production processes. Any metal fragment passing through the detector tunnel disturbs this field, and the system instantly records this deviation, informing the operator with audible and visual alerts. The enhanced software platform filters signal noise, distinguishing even the smallest metal particles with high reliability. This technology is a critical quality control component that increases efficiency by reducing production line downtime. Components manufactured from high-resistance stainless steel to support ease of cleaning and use are configured to meet the needs of sensitive sectors such as food and cosmetics. Quick and easy installation features eliminate or reduce downtime that may occur during transitions between different package sizes or product settings. Our custom designs, which can be seamlessly integrated into existing conveyor systems, are flexible enough to meet both the current and future security requirements of businesses. Thanks to its compact structure and user-friendly interface, it lowers the total cost of ownership (TCO) by shortening operator training processes.
ADVANTAGES AND USAGE AREAS

Puls Electronic’s Tunnel Type Metal Detector is a professional inspection solution that detects metal contaminants such as ferromagnetic and stainless steel within milliseconds using the electromagnetic induction method on production lines. Developed specifically for the food, textile, and chemical sectors, this system elevates the safety of packaged or bulk products (pulses, seeds, cookies, etc.) to the highest level.

Thanks to its extreme operating range from -50°C to +70°C, it delivers flawless performance even on frozen product lines. With its high-resistance stainless steel structure and easy-to-clean industrial construction, it ensures full compliance with hygiene standards. While its advanced software platform and audio/visual warning systems minimize production downtime, its next-generation locked reject bin takes the security of rejected products under control. With a design that integrates easily into your existing systems, Puls meets both your current and future quality control needs from a single point.

Advantages and Usage Areas:

  • Superior Metal Detection Sensitivity: Ability to detect all magnetic and non-magnetic metals (stainless steel, aluminum, brass, etc.) with high sensitivity.
  • Wide Thermal Operating Range: Stable operation on frozen or high-temperature product lines within the range of -50°C to +70°C.
  • Advanced Safety Standards: Next-generation locked reject system that keeps rejected products secured against unauthorized access.
  • Sectoral Versatility: A critical inspection point in the textile, cosmetic, and chemical industries, primarily in food (pulses, cookies, frozen food).
  • Industrial Durability: Corrosion-resistant stainless steel body design suitable for dusty, humid, and demanding working conditions.
  • Software and Operator Support: User-friendly interface and smart software updates ensuring continuous high detection performance.
Signal Frequency 90 Khz
Operating Conditions Temp.(C°) For the machine to function correctly, the temperature range should be between -10 C°and +40 C°
Humminity(%RH) The humidity should be between 30% and 85% with no condensation.
The equipment should also be kept away from direct sunlight, heaters, and vibration sources.
The power supply voltage fluctuation range should not exceed +10% to -15%
Frequency Adjustment The machine's frequency can be adjusted within a small range to deal with interference from other equipment. However, it is recommended to consult an engineer for this adjustment.
Sensitivity Setting The "Auto Set" function is used to automatically set the sensitivity for a product. The sensitivity can also be manually adjusted using "Manual Set" if needed. When in "Manual Set" mode, the machine will not alarm or stop.
Alarm Types Stop The alarm sounds, the conveyor belt stops, and the detection probe stops working
Backward The alarm sounds and the conveyor belt reverses
Reject Applicable for reject systems like a turnover plate or sinking type.
Accurate Reject Applicable for air blowing and push-type reject systems, capable of rejecting one specific item out of several.
HMI Display size 7" TFT
Shell material Engineering plastics
Shape size 204x150x37 (mm)
Panel protection grade Conforming to IP65 certification
DIMENSIONS LİST
STANDARD Height (Effective) Width (Effective) Height Width
200 100 200 140 260
200 150 200 190 260
200 200 200 240 260
200 300 200 340 260
400 100 400 140 460
400 200 400 240 460
400 300 400 340 460
500 200 500 240 560
600 300 600 340 660
SENSIBILITY
Effective Height Fe Non-Fe SS
100 0,8 1,5 2
150 1 1,5 2,5
200 1,2 2 2,5
300 2 3 3,5
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OUR ALTERNATE PRODUCTS

The Gravity Fall Metal Detector is a professional inspection technology specifically developed for the plastics industry to monitor ferrous and non-ferrous metals (such as copper, aluminum, brass, and stainless steel) in the raw material flow with high precision. Operating on the principle of electromagnetic induction, this system safeguards masterbatch manufacturing processes in plastic injection, extruder, and blow molding lines. With its high-resistance stainless steel body, it detects ferromagnetic particles within milliseconds and automatically removes contaminated material from the line via an integrated separator valve. This cost-effective solution maximizes plant efficiency and raw material safety by preventing production downtime.